MTN "SYSTEM ISSUES"

So, I have to upgrade because there's something wrong with my current phone. August arrives and I first go to MTN Soneike Kuilsrivier mall to check if they have stock. They then say that I have 3 months remaining, but I am eligible for an early upgrade. Cool. Then they explain to me (VERY POORLY) that I have to pay the remainder of my phone value IN ADDITION TO the new upgrade contract for the next three months - which I found out later from a knowledgeable mtn employee that I only pay for my device for 3 months with the new contract and THEREAFTER pay for the new device. Cool, I finally know what's up. Now, I go to Tygervalley after multiple trips to other branches to get my upgrade done, only to be told that the August deal that I want (it's printed in the August 2021 brochure) is not loaded into the system yet????!!!! That was on the 4th of August. It's 10th of August and I am STILL waiting for the mtn system!! This is ridiculous. How does mtn make money if they can't even load deals onto system in time?? Pathetic. (This issue is not the employee's fault and he's been very sympathetic and I understand that his hands are tied). Sort yourself out, MTN.